⚠ Back-Order Notice (Estimated shipping time: 2–3 weeks as of October 8, 2026)
A new batch of this product is currently in production. You are welcome to place an order now to reserve your spot in line for the incoming inventory. Once inventory arrives, orders will ship within 2–3 business days.
Please note: Only new orders placed while this notice is active are affected by the back-order. All previous orders have already shipped.
Thank you for your patience!
The Spark Gap X4 is a feature-filled 4-channel standalone ECU powered by the Atmega2560 and fully compatible with official Speeduino firmware. It supports up to 8 cylinders for fuel and ignition and is ideal for compact, cost-effective installations.
Included:
Assembled Spark Gap X4 ECU
Harness-side connectors and pins
Arduino Mega 2560 "Pro" pre-flashed with latest Speeduino firmware
The legendary Speeduino 0.4 (0.4.4d)
Supports up to 8 cylinders for fuel and ignition using 4 channels for fuel and 4 channels for ignition outputs, suitable for 2 (even fire only), 3, and 4-cylinder engines with full sequential fuel and ignition. 6 (even fire only) and 8-cylinder engines are supported with wasted spark and 2 squirts per cycle.
Included:
Official Speeduino 0.4.4d
Optional Selection:
No MAP sensor
4-Bar Sensor (SMD Sensor via installed adapter)
2.5-Bar MAP Sensor (Currently out of stock)
Items you may need:
Fully compatible with the official Speeduino Firmware, no code modification required! This feature-filled 2-channel standalone ECU powered by official Speeduino Firmware supports up to 4 cylinders for fuel and ignition.
Included:
Pre-Ignition x2 Standalone ECU (Assembled minus main Connector)
ECU headers, harness side connectors, and pins.
Optional 4-Bar MAP sensor
Items you may need:
⚠ Back-Order Notice (Estimated shipping time: 2–3 weeks as of October 8, 2026)
A new batch of this product is currently in production. You are welcome to place an order now to reserve your spot in line for the incoming inventory.
Once inventory arrives, orders will ship within 2–3 business days.
Please note: Only new orders placed while this notice is active are affected by the back-order. All previous orders have already shipped.
Thank you for your patience!
The OpenLogicEFI Engine Simulator, powered by the Ardustim firmware, is a powerful tool for simulating engine operation and testing various sensor and control systems. This simulator can simulate three simultaneous digital trigger patterns—crank, cam, and cam2—through free and open-source software, making it a versatile and flexible tool for hardware testing and diagnostics.
Assembled Unit:
Fully assembled and ready to use, as shown in the product images.
Unassembled Kit:
Includes a PCB with all surface-mount (SMD) components pre-installed. All remaining through-hole components are included but must be installed by the end user.
The Closed Deck X4 is our most feature-packed standalone ECU to date. Powered by the Atmega2560 and fully compatible with the official Speeduino firmware (no code modification required), it offers exceptional flexibility and capability for a wide range of engine setups and applications.
Included:
Closed Deck X4 ECU (assembled as pictured)
Harness-side connectors and pins
Arduino Mega 2560 "Pro" pre-flashed with latest Speeduino firmware